@Sneh Thakkar
Thank you for posting in Microsoft Q&A forum.
I don't think it's a correct setting, have you configure the wsus update source manually?
When you check the SUP component properties, what is the sync setting of IBCM server?
You may check WSUSCtrl.log in IBCM server to see if there any error?
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.